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7. Add or subtract the following polynomials:
a. 5x2 + 3y3 - 4x2 =
b. y3 + 2y3 - 8 + 2 =
c. 9-3x - 4x + 2x - 12 =
d. -6t + 4+2 -16 + 7+ - 4+2 =

User RichardCL
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1 Answer

7 votes

Answer:

a.
x^(2) + 3y^(3)

b.
3y^(3) -6

c.
5x -3

d. -6t - 5

Explanation:

When a number has the same variable as another, you can add or subtract them

So for the first one, you can do


5x^(2) -4x^(2) = 1x^(2) = x^(2)

(But don't forget the
3y^(3)!)

So it is:


x^(2) + 3y^(3)

Continue this process for the rest of them

User LewlSauce
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7.6k points
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